/*
 *
 *  *  Copyright 2009-2018.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  *    Unless required by applicable law or agreed to in writing, software
 *  *    distributed under the License is distributed on an "AS IS" BASIS,
 *  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  *    See the License for the specific language governing permissions and
 *  *    limitations under the License.
 *
 */
package com.github.pampas.common.tracer;

import io.opentracing.Span;
import io.opentracing.Tracer;

/**
 * opentracing context, TracerFactory container
 * motan
 */
public class OpenTracingContext {
    // replace TracerFactory with any tracer implementation
    public static TracerFactory tracerFactory = TracerFactory.DEFAULT;
    public static final String ACTIVE_SPAN = "ot_active_span";

    public static Tracer getTracer() {
        return tracerFactory.getTracer();
    }

    public static Span getActiveSpan() {
//        Object span = RpcContext.getContext().getAttribute(ACTIVE_SPAN);
//        if (span != null && span instanceof Span) {
//            return (Span) span;
//        }
        return null;
    }

    public static void setActiveSpan(Span span) {
//        RpcContext.getContext().putAttribute(ACTIVE_SPAN, span);
    }

    public static void setTracerFactory(TracerFactory tracerFactory) {
        OpenTracingContext.tracerFactory = tracerFactory;
    }
}
